In 2006, a volcanologist with the U.S. Geological Survey (USGS) named Mount Hood the fourth-most-dangerous volcano in the country. Some in the industry believe it’s the most likely of Oregon’s volcanoes to erupt; its last period of eruptive activity was 170 to 220 years ago.
Agua de Pau
Photo source: Rei-artur (Wikimedia Commons)
This volcano is also located on São Paulo Island and has been relatively dormant since 1564. Like Sete Cidades, it’s a stratovolcano, but its origins are older (somewhere between thirty thousand and forty-five thousand years ago).
Mount Rainier
Photo source: Amenokami (cc)
One of the most beautiful backdrops in Washington is also one of the most dangerous. USGS calls it a dormant volcano because its last eruption was back in 1894, but two of its characteristics are worrisome: many people live near it, and it contains more glacier ice than any other mountain in the forty-eight states. That’s why, like Mount Teide, it’s a Decade Volcano. 上一页 [1] [2] [3] [4] 【已有很多网友发表了看法,点击参与讨论】【对英语不懂,点击提问】【英语论坛】【返回首页】
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